Not even in public beta, iOS 10 has already been jailbroken

If you’re keeping score at home, the last iOS version successfully jailbroken using a publicly-available tool was iOS 9.0.2, using the Pangu Jailbreak. A few lucky users managed to upgrade to iOS 9.1 using a tool released by Pangu in March, but most of the world is still stuck with an older iOS version for fear that upgrading will overwrite the exploit and thus lead to a vanilla phone running the stock version of iOS.